| /* GDB CLI commands. |
| |
| Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "defs.h" |
| #include <readline/tilde.h> |
| #include "completer.h" |
| #include "target.h" /* For baud_rate, remote_debug and remote_timeout */ |
| #include "gdb_wait.h" /* For shell escape implementation */ |
| #include "gdb_regex.h" /* Used by apropos_command */ |
| #include "gdb_string.h" |
| #include "linespec.h" |
| #include "expression.h" |
| #include "frame.h" |
| #include "value.h" |
| #include "language.h" |
| #include "filenames.h" /* for DOSish file names */ |
| #include "objfiles.h" |
| #include "source.h" |
| #include "disasm.h" |
| |
| #include "ui-out.h" |
| |
| #include "top.h" |
| #include "cli/cli-decode.h" |
| #include "cli/cli-script.h" |
| #include "cli/cli-setshow.h" |
| #include "cli/cli-cmds.h" |
| |
| #ifndef GDBINIT_FILENAME |
| #define GDBINIT_FILENAME ".gdbinit" |
| #endif |
| |
| /* From gdb/top.c */ |
| |
| extern void dont_repeat (void); |
| |
| extern void set_verbose (char *, int, struct cmd_list_element *); |
| |
| extern void show_history (char *, int); |
| |
| extern void set_history (char *, int); |
| |
| extern void show_commands (char *, int); |
| |
| /* Prototypes for local command functions */ |
| |
| static void complete_command (char *, int); |
| |
| static void echo_command (char *, int); |
| |
| static void pwd_command (char *, int); |
| |
| static void show_version (char *, int); |
| |
| static void validate_comname (char *); |
| |
| static void help_command (char *, int); |
| |
| static void show_command (char *, int); |
| |
| static void info_command (char *, int); |
| |
| static void show_debug (char *, int); |
| |
| static void set_debug (char *, int); |
| |
| static void show_user (char *, int); |
| |
| static void make_command (char *, int); |
| |
| static void shell_escape (char *, int); |
| |
| static void edit_command (char *, int); |
| |
| static void list_command (char *, int); |
| |
| void apropos_command (char *, int); |
| |
| /* Prototypes for local utility functions */ |
| |
| static void ambiguous_line_spec (struct symtabs_and_lines *); |
| |
| /* Limit the call depth of user-defined commands */ |
| int max_user_call_depth; |
| |
| /* Define all cmd_list_elements. */ |
| |
| /* Chain containing all defined commands. */ |
| |
| struct cmd_list_element *cmdlist; |
| |
| /* Chain containing all defined info subcommands. */ |
| |
| struct cmd_list_element *infolist; |
| |
| /* Chain containing all defined enable subcommands. */ |
| |
| struct cmd_list_element *enablelist; |
| |
| /* Chain containing all defined disable subcommands. */ |
| |
| struct cmd_list_element *disablelist; |
| |
| /* Chain containing all defined toggle subcommands. */ |
| |
| struct cmd_list_element *togglelist; |
| |
| /* Chain containing all defined stop subcommands. */ |
| |
| struct cmd_list_element *stoplist; |
| |
| /* Chain containing all defined delete subcommands. */ |
| |
| struct cmd_list_element *deletelist; |
| |
| /* Chain containing all defined "enable breakpoint" subcommands. */ |
| |
| struct cmd_list_element *enablebreaklist; |
| |
| /* Chain containing all defined set subcommands */ |
| |
| struct cmd_list_element *setlist; |
| |
| /* Chain containing all defined unset subcommands */ |
| |
| struct cmd_list_element *unsetlist; |
| |
| /* Chain containing all defined show subcommands. */ |
| |
| struct cmd_list_element *showlist; |
| |
| /* Chain containing all defined \"set history\". */ |
| |
| struct cmd_list_element *sethistlist; |
| |
| /* Chain containing all defined \"show history\". */ |
| |
| struct cmd_list_element *showhistlist; |
| |
| /* Chain containing all defined \"unset history\". */ |
| |
| struct cmd_list_element *unsethistlist; |
| |
| /* Chain containing all defined maintenance subcommands. */ |
| |
| struct cmd_list_element *maintenancelist; |
| |
| /* Chain containing all defined "maintenance info" subcommands. */ |
| |
| struct cmd_list_element *maintenanceinfolist; |
| |
| /* Chain containing all defined "maintenance print" subcommands. */ |
| |
| struct cmd_list_element *maintenanceprintlist; |
| |
| /* Chain containing all defined "maintenance list" subcommands. */ |
| |
| struct cmd_list_element *maintenancelistlist; |
| |
| struct cmd_list_element *setprintlist; |
| |
| struct cmd_list_element *showprintlist; |
| |
| struct cmd_list_element *setdebuglist; |
| |
| struct cmd_list_element *showdebuglist; |
| |
| struct cmd_list_element *setchecklist; |
| |
| struct cmd_list_element *showchecklist; |
| |
| /* Utility used everywhere when at least one argument is needed and |
| none is supplied. */ |
| |
| void |
| error_no_arg (char *why) |
| { |
| error ("Argument required (%s).", why); |
| } |
| |
| /* The "info" command is defined as a prefix, with allow_unknown = 0. |
| Therefore, its own definition is called only for "info" with no args. */ |
| |
| /* ARGSUSED */ |
| static void |
| info_command (char *arg, int from_tty) |
| { |
| printf_unfiltered ("\"info\" must be followed by the name of an info command.\n"); |
| help_list (infolist, "info ", -1, gdb_stdout); |
| } |
| |
| /* The "show" command with no arguments shows all the settings. */ |
| |
| /* ARGSUSED */ |
| static void |
| show_command (char *arg, int from_tty) |
| { |
| cmd_show_list (showlist, from_tty, ""); |
| } |
| |
| /* Provide documentation on command or list given by COMMAND. FROM_TTY |
| is ignored. */ |
| |
| /* ARGSUSED */ |
| static void |
| help_command (char *command, int from_tty) |
| { |
| help_cmd (command, gdb_stdout); |
| } |
| |
| /* String compare function for qsort. */ |
| static int |
| compare_strings (const void *arg1, const void *arg2) |
| { |
| const char **s1 = (const char **) arg1; |
| const char **s2 = (const char **) arg2; |
| return strcmp (*s1, *s2); |
| } |
| |
| /* The "complete" command is used by Emacs to implement completion. */ |
| |
| /* ARGSUSED */ |
| static void |
| complete_command (char *arg, int from_tty) |
| { |
| int i; |
| int argpoint; |
| char **completions; |
| |
| dont_repeat (); |
| |
| if (arg == NULL) |
| arg = ""; |
| argpoint = strlen (arg); |
| |
| completions = complete_line (arg, arg, argpoint); |
| |
| if (completions) |
| { |
| int item, size; |
| |
| for (size = 0; completions[size]; ++size) |
| ; |
| qsort (completions, size, sizeof (char *), compare_strings); |
| |
| /* We do extra processing here since we only want to print each |
| unique item once. */ |
| item = 0; |
| while (item < size) |
| { |
| int next_item; |
| printf_unfiltered ("%s\n", completions[item]); |
| next_item = item + 1; |
| while (next_item < size |
| && ! strcmp (completions[item], completions[next_item])) |
| { |
| xfree (completions[next_item]); |
| ++next_item; |
| } |
| |
| xfree (completions[item]); |
| item = next_item; |
| } |
| |
| xfree (completions); |
| } |
| } |
| |
| int |
| is_complete_command (struct cmd_list_element *c) |
| { |
| return cmd_cfunc_eq (c, complete_command); |
| } |
| |
| /* ARGSUSED */ |
| static void |
| show_version (char *args, int from_tty) |
| { |
| immediate_quit++; |
| print_gdb_version (gdb_stdout); |
| printf_filtered ("\n"); |
| immediate_quit--; |
| } |
| |
| /* Handle the quit command. */ |
| |
| void |
| quit_command (char *args, int from_tty) |
| { |
| if (!quit_confirm ()) |
| error ("Not confirmed."); |
| quit_force (args, from_tty); |
| } |
| |
| /* ARGSUSED */ |
| static void |
| pwd_command (char *args, int from_tty) |
| { |
| if (args) |
| error ("The \"pwd\" command does not take an argument: %s", args); |
| getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); |
| |
| if (!STREQ (gdb_dirbuf, current_directory)) |
| printf_unfiltered ("Working directory %s\n (canonically %s).\n", |
| current_directory, gdb_dirbuf); |
| else |
| printf_unfiltered ("Working directory %s.\n", current_directory); |
| } |
| |
| void |
| cd_command (char *dir, int from_tty) |
| { |
| int len; |
| /* Found something other than leading repetitions of "/..". */ |
| int found_real_path; |
| char *p; |
| |
| /* If the new directory is absolute, repeat is a no-op; if relative, |
| repeat might be useful but is more likely to be a mistake. */ |
| dont_repeat (); |
| |
| if (dir == 0) |
| error_no_arg ("new working directory"); |
| |
| dir = tilde_expand (dir); |
| make_cleanup (xfree, dir); |
| |
| if (chdir (dir) < 0) |
| perror_with_name (dir); |
| |
| #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| /* There's too much mess with DOSish names like "d:", "d:.", |
| "d:./foo" etc. Instead of having lots of special #ifdef'ed code, |
| simply get the canonicalized name of the current directory. */ |
| dir = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); |
| #endif |
| |
| len = strlen (dir); |
| if (IS_DIR_SEPARATOR (dir[len - 1])) |
| { |
| /* Remove the trailing slash unless this is a root directory |
| (including a drive letter on non-Unix systems). */ |
| if (!(len == 1) /* "/" */ |
| #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| && !(len == 3 && dir[1] == ':') /* "d:/" */ |
| #endif |
| ) |
| len--; |
| } |
| |
| dir = savestring (dir, len); |
| if (IS_ABSOLUTE_PATH (dir)) |
| current_directory = dir; |
| else |
| { |
| if (IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])) |
| current_directory = concat (current_directory, dir, NULL); |
| else |
| current_directory = concat (current_directory, SLASH_STRING, dir, NULL); |
| xfree (dir); |
| } |
| |
| /* Now simplify any occurrences of `.' and `..' in the pathname. */ |
| |
| found_real_path = 0; |
| for (p = current_directory; *p;) |
| { |
| if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' |
| && (p[2] == 0 || IS_DIR_SEPARATOR (p[2]))) |
| strcpy (p, p + 2); |
| else if (IS_DIR_SEPARATOR (p[0]) && p[1] == '.' && p[2] == '.' |
| && (p[3] == 0 || IS_DIR_SEPARATOR (p[3]))) |
| { |
| if (found_real_path) |
| { |
| /* Search backwards for the directory just before the "/.." |
| and obliterate it and the "/..". */ |
| char *q = p; |
| while (q != current_directory && !IS_DIR_SEPARATOR (q[-1])) |
| --q; |
| |
| if (q == current_directory) |
| /* current_directory is |
| a relative pathname ("can't happen"--leave it alone). */ |
| ++p; |
| else |
| { |
| strcpy (q - 1, p + 3); |
| p = q - 1; |
| } |
| } |
| else |
| /* We are dealing with leading repetitions of "/..", for example |
| "/../..", which is the Mach super-root. */ |
| p += 3; |
| } |
| else |
| { |
| found_real_path = 1; |
| ++p; |
| } |
| } |
| |
| forget_cached_source_info (); |
| |
| if (from_tty) |
| pwd_command ((char *) 0, 1); |
| } |
| |
| void |
| source_command (char *args, int from_tty) |
| { |
| FILE *stream; |
| struct cleanup *old_cleanups; |
| char *file = args; |
| |
| if (file == NULL) |
| { |
| error ("source command requires pathname of file to source."); |
| } |
| |
| file = tilde_expand (file); |
| old_cleanups = make_cleanup (xfree, file); |
| |
| stream = fopen (file, FOPEN_RT); |
| if (!stream) |
| { |
| if (from_tty) |
| perror_with_name (file); |
| else |
| return; |
| } |
| |
| script_from_file (stream, file); |
| |
| do_cleanups (old_cleanups); |
| } |
| |
| /* ARGSUSED */ |
| static void |
| echo_command (char *text, int from_tty) |
| { |
| char *p = text; |
| register int c; |
| |
| if (text) |
| while ((c = *p++) != '\0') |
| { |
| if (c == '\\') |
| { |
| /* \ at end of argument is used after spaces |
| so they won't be lost. */ |
| if (*p == 0) |
| return; |
| |
| c = parse_escape (&p); |
| if (c >= 0) |
| printf_filtered ("%c", c); |
| } |
| else |
| printf_filtered ("%c", c); |
| } |
| |
| /* Force this output to appear now. */ |
| wrap_here (""); |
| gdb_flush (gdb_stdout); |
| } |
| |
| /* ARGSUSED */ |
| static void |
| shell_escape (char *arg, int from_tty) |
| { |
| #ifdef CANT_FORK |
| /* If ARG is NULL, they want an inferior shell, but `system' just |
| reports if the shell is available when passed a NULL arg. */ |
| int rc = system (arg ? arg : ""); |
| |
| if (!arg) |
| arg = "inferior shell"; |
| |
| if (rc == -1) |
| { |
| fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, |
| safe_strerror (errno)); |
| gdb_flush (gdb_stderr); |
| } |
| else if (rc) |
| { |
| fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); |
| gdb_flush (gdb_stderr); |
| } |
| #ifdef GLOBAL_CURDIR |
| /* Make sure to return to the directory GDB thinks it is, in case the |
| shell command we just ran changed it. */ |
| chdir (current_directory); |
| #endif |
| #else /* Can fork. */ |
| int rc, status, pid; |
| char *p, *user_shell; |
| |
| if ((user_shell = (char *) getenv ("SHELL")) == NULL) |
| user_shell = "/bin/sh"; |
| |
| /* Get the name of the shell for arg0 */ |
| if ((p = strrchr (user_shell, '/')) == NULL) |
| p = user_shell; |
| else |
| p++; /* Get past '/' */ |
| |
| if ((pid = fork ()) == 0) |
| { |
| if (!arg) |
| execl (user_shell, p, 0); |
| else |
| execl (user_shell, p, "-c", arg, 0); |
| |
| fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, |
| safe_strerror (errno)); |
| gdb_flush (gdb_stderr); |
| _exit (0177); |
| } |
| |
| if (pid != -1) |
| while ((rc = wait (&status)) != pid && rc != -1) |
| ; |
| else |
| error ("Fork failed"); |
| #endif /* Can fork. */ |
| } |
| |
| static void |
| edit_command (char *arg, int from_tty) |
| { |
| struct symtabs_and_lines sals; |
| struct symtab_and_line sal; |
| struct symbol *sym; |
| char *arg1; |
| int cmdlen, log10; |
| unsigned m; |
| char *editor; |
| char *p; |
| |
| /* Pull in the current default source line if necessary */ |
| if (arg == 0) |
| { |
| set_default_source_symtab_and_line (); |
| sal = get_current_source_symtab_and_line (); |
| } |
| |
| /* bare "edit" edits file with present line. */ |
| |
| if (arg == 0) |
| { |
| if (sal.symtab == 0) |
| error ("No default source file yet."); |
| sal.line += get_lines_to_list () / 2; |
| } |
| else |
| { |
| |
| /* Now should only be one argument -- decode it in SAL */ |
| |
| arg1 = arg; |
| sals = decode_line_1 (&arg1, 0, 0, 0, 0); |
| |
| if (! sals.nelts) return; /* C++ */ |
| if (sals.nelts > 1) { |
| ambiguous_line_spec (&sals); |
| xfree (sals.sals); |
| return; |
| } |
| |
| sal = sals.sals[0]; |
| xfree (sals.sals); |
| |
| if (*arg1) |
| error ("Junk at end of line specification."); |
| |
| /* if line was specified by address, |
| first print exactly which line, and which file. |
| In this case, sal.symtab == 0 means address is outside |
| of all known source files, not that user failed to give a filename. */ |
| if (*arg == '*') |
| { |
| if (sal.symtab == 0) |
| /* FIXME-32x64--assumes sal.pc fits in long. */ |
| error ("No source file for address %s.", |
| local_hex_string((unsigned long) sal.pc)); |
| sym = find_pc_function (sal.pc); |
| if (sym) |
| { |
| print_address_numeric (sal.pc, 1, gdb_stdout); |
| printf_filtered (" is in "); |
| fputs_filtered (SYMBOL_PRINT_NAME (sym), gdb_stdout); |
| printf_filtered (" (%s:%d).\n", sal.symtab->filename, sal.line); |
| } |
| else |
| { |
| print_address_numeric (sal.pc, 1, gdb_stdout); |
| printf_filtered (" is at %s:%d.\n", |
| sal.symtab->filename, sal.line); |
| } |
| } |
| |
| /* If what was given does not imply a symtab, it must be an undebuggable |
| symbol which means no source code. */ |
| |
| if (sal.symtab == 0) |
| error ("No line number known for %s.", arg); |
| } |
| |
| if ((editor = (char *) getenv ("EDITOR")) == NULL) |
| editor = "/bin/ex"; |
| |
| /* Approximate base-10 log of line to 1 unit for digit count */ |
| for(log10=32, m=0x80000000; !(sal.line & m) && log10>0; log10--, m=m>>1); |
| log10 = 1 + (int)((log10 + (0 == ((m-1) & sal.line)))/3.32192809); |
| |
| cmdlen = strlen(editor) + 1 |
| + (NULL == sal.symtab->dirname ? 0 : strlen(sal.symtab->dirname) + 1) |
| + (NULL == sal.symtab->filename? 0 : strlen(sal.symtab->filename)+ 1) |
| + log10 + 2; |
| |
| p = xmalloc(cmdlen); |
| sprintf(p,"%s +%d %s%s",editor,sal.line, |
| (NULL == sal.symtab->dirname ? "./" : |
| (NULL != sal.symtab->filename && *(sal.symtab->filename) != '/') ? |
| sal.symtab->dirname : ""), |
| (NULL == sal.symtab->filename ? "unknown" : sal.symtab->filename) |
| ); |
| shell_escape(p, from_tty); |
| |
| xfree(p); |
| } |
| |
| static void |
| list_command (char *arg, int from_tty) |
| { |
| struct symtabs_and_lines sals, sals_end; |
| struct symtab_and_line sal, sal_end, cursal; |
| struct symbol *sym; |
| char *arg1; |
| int no_end = 1; |
| int dummy_end = 0; |
| int dummy_beg = 0; |
| int linenum_beg = 0; |
| char *p; |
| |
| /* Pull in the current default source line if necessary */ |
| if (arg == 0 || arg[0] == '+' || arg[0] == '-') |
| { |
| set_default_source_symtab_and_line (); |
| cursal = get_current_source_symtab_and_line (); |
| } |
| |
| /* "l" or "l +" lists next ten lines. */ |
| |
| if (arg == 0 || STREQ (arg, "+")) |
| { |
| print_source_lines (cursal.symtab, cursal.line, |
| cursal.line + get_lines_to_list (), 0); |
| return; |
| } |
| |
| /* "l -" lists previous ten lines, the ones before the ten just listed. */ |
| if (STREQ (arg, "-")) |
| { |
| print_source_lines (cursal.symtab, |
| max (get_first_line_listed () - get_lines_to_list (), 1), |
| get_first_line_listed (), 0); |
| return; |
| } |
| |
| /* Now if there is only one argument, decode it in SAL |
| and set NO_END. |
| If there are two arguments, decode them in SAL and SAL_END |
| and clear NO_END; however, if one of the arguments is blank, |
| set DUMMY_BEG or DUMMY_END to record that fact. */ |
| |
| if (!have_full_symbols () && !have_partial_symbols ()) |
| error ("No symbol table is loaded. Use the \"file\" command."); |
| |
| arg1 = arg; |
| if (*arg1 == ',') |
| dummy_beg = 1; |
| else |
| { |
| sals = decode_line_1 (&arg1, 0, 0, 0, 0); |
| |
| if (!sals.nelts) |
| return; /* C++ */ |
| if (sals.nelts > 1) |
| { |
| ambiguous_line_spec (&sals); |
| xfree (sals.sals); |
| return; |
| } |
| |
| sal = sals.sals[0]; |
| xfree (sals.sals); |
| } |
| |
| /* Record whether the BEG arg is all digits. */ |
| |
| for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); |
| linenum_beg = (p == arg1); |
| |
| while (*arg1 == ' ' || *arg1 == '\t') |
| arg1++; |
| if (*arg1 == ',') |
| { |
| no_end = 0; |
| arg1++; |
| while (*arg1 == ' ' || *arg1 == '\t') |
| arg1++; |
| if (*arg1 == 0) |
| dummy_end = 1; |
| else |
| { |
| if (dummy_beg) |
| sals_end = decode_line_1 (&arg1, 0, 0, 0, 0); |
| else |
| sals_end = decode_line_1 (&arg1, 0, sal.symtab, sal.line, 0); |
| if (sals_end.nelts == 0) |
| return; |
| if (sals_end.nelts > 1) |
| { |
| ambiguous_line_spec (&sals_end); |
| xfree (sals_end.sals); |
| return; |
| } |
| sal_end = sals_end.sals[0]; |
| xfree (sals_end.sals); |
| } |
| } |
| |
| if (*arg1) |
| error ("Junk at end of line specification."); |
| |
| if (!no_end && !dummy_beg && !dummy_end |
| && sal.symtab != sal_end.symtab) |
| error ("Specified start and end are in different files."); |
| if (dummy_beg && dummy_end) |
| error ("Two empty args do not say what lines to list."); |
| |
| /* if line was specified by address, |
| first print exactly which line, and which file. |
| In this case, sal.symtab == 0 means address is outside |
| of all known source files, not that user failed to give a filename. */ |
| if (*arg == '*') |
| { |
| if (sal.symtab == 0) |
| /* FIXME-32x64--assumes sal.pc fits in long. */ |
| error ("No source file for address %s.", |
| local_hex_string ((unsigned long) sal.pc)); |
| sym = find_pc_function (sal.pc); |
| if (sym) |
| { |
| print_address_numeric (sal.pc, 1, gdb_stdout); |
| printf_filtered (" is in "); |
| fputs_filtered (SYMBOL_PRINT_NAME (sym), gdb_stdout); |
| printf_filtered (" (%s:%d).\n", sal.symtab->filename, sal.line); |
| } |
| else |
| { |
| print_address_numeric (sal.pc, 1, gdb_stdout); |
| printf_filtered (" is at %s:%d.\n", |
| sal.symtab->filename, sal.line); |
| } |
| } |
| |
| /* If line was not specified by just a line number, |
| and it does not imply a symtab, it must be an undebuggable symbol |
| which means no source code. */ |
| |
| if (!linenum_beg && sal.symtab == 0) |
| error ("No line number known for %s.", arg); |
| |
| /* If this command is repeated with RET, |
| turn it into the no-arg variant. */ |
| |
| if (from_tty) |
| *arg = 0; |
| |
| if (dummy_beg && sal_end.symtab == 0) |
| error ("No default source file yet. Do \"help list\"."); |
| if (dummy_beg) |
| print_source_lines (sal_end.symtab, |
| max (sal_end.line - (get_lines_to_list () - 1), 1), |
| sal_end.line + 1, 0); |
| else if (sal.symtab == 0) |
| error ("No default source file yet. Do \"help list\"."); |
| else if (no_end) |
| { |
| int first_line = sal.line - get_lines_to_list () / 2; |
| |
| if (first_line < 1) first_line = 1; |
| |
| print_source_lines (sal.symtab, |
| first_line, |
| first_line + get_lines_to_list (), |
| 0); |
| } |
| else |
| print_source_lines (sal.symtab, sal.line, |
| (dummy_end |
| ? sal.line + get_lines_to_list () |
| : sal_end.line + 1), |
| 0); |
| } |
| |
| /* Dump a specified section of assembly code. With no command line |
| arguments, this command will dump the assembly code for the |
| function surrounding the pc value in the selected frame. With one |
| argument, it will dump the assembly code surrounding that pc value. |
| Two arguments are interpeted as bounds within which to dump |
| assembly. */ |
| |
| /* ARGSUSED */ |
| static void |
| disassemble_command (char *arg, int from_tty) |
| { |
| CORE_ADDR low, high; |
| char *name; |
| CORE_ADDR pc, pc_masked; |
| char *space_index; |
| #if 0 |
| asection *section; |
| #endif |
| |
| name = NULL; |
| if (!arg) |
| { |
| if (!deprecated_selected_frame) |
| error ("No frame selected.\n"); |
| |
| pc = get_frame_pc (deprecated_selected_frame); |
| if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
| error ("No function contains program counter for selected frame.\n"); |
| #if defined(TUI) |
| /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
| `tui_version'. */ |
| else if (tui_active) |
| low = tuiGetLowDisassemblyAddress (low, pc); |
| #endif |
| low += FUNCTION_START_OFFSET; |
| } |
| else if (!(space_index = (char *) strchr (arg, ' '))) |
| { |
| /* One argument. */ |
| pc = parse_and_eval_address (arg); |
| if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
| error ("No function contains specified address.\n"); |
| #if defined(TUI) |
| /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
| `tui_version'. */ |
| else if (tui_active) |
| low = tuiGetLowDisassemblyAddress (low, pc); |
| #endif |
| low += FUNCTION_START_OFFSET; |
| } |
| else |
| { |
| /* Two arguments. */ |
| *space_index = '\0'; |
| low = parse_and_eval_address (arg); |
| high = parse_and_eval_address (space_index + 1); |
| } |
| |
| #if defined(TUI) |
| if (!tui_is_window_visible (DISASSEM_WIN)) |
| #endif |
| { |
| printf_filtered ("Dump of assembler code "); |
| if (name != NULL) |
| { |
| printf_filtered ("for function %s:\n", name); |
| } |
| else |
| { |
| printf_filtered ("from "); |
| print_address_numeric (low, 1, gdb_stdout); |
| printf_filtered (" to "); |
| print_address_numeric (high, 1, gdb_stdout); |
| printf_filtered (":\n"); |
| } |
| |
| /* Dump the specified range. */ |
| gdb_disassembly (uiout, 0, 0, 0, -1, low, high); |
| |
| printf_filtered ("End of assembler dump.\n"); |
| gdb_flush (gdb_stdout); |
| } |
| #if defined(TUI) |
| else |
| { |
| tui_show_assembly (low); |
| } |
| #endif |
| } |
| |
| static void |
| make_command (char *arg, int from_tty) |
| { |
| char *p; |
| |
| if (arg == 0) |
| p = "make"; |
| else |
| { |
| p = xmalloc (sizeof ("make ") + strlen (arg)); |
| strcpy (p, "make "); |
| strcpy (p + sizeof ("make ") - 1, arg); |
| } |
| |
| shell_escape (p, from_tty); |
| } |
| |
| /* ARGSUSED */ |
| static void |
| show_user (char *args, int from_tty) |
| { |
| struct cmd_list_element *c; |
| extern struct cmd_list_element *cmdlist; |
| |
| if (args) |
| { |
| c = lookup_cmd (&args, cmdlist, "", 0, 1); |
| if (c->class != class_user) |
| error ("Not a user command."); |
| show_user_1 (c, gdb_stdout); |
| } |
| else |
| { |
| for (c = cmdlist; c; c = c->next) |
| { |
| if (c->class == class_user) |
| show_user_1 (c, gdb_stdout); |
| } |
| } |
| } |
| |
| /* Search through names of commands and documentations for a certain |
| regular expression. |
| */ |
| void |
| apropos_command (char *searchstr, int from_tty) |
| { |
| extern struct cmd_list_element *cmdlist; /*This is the main command list*/ |
| regex_t pattern; |
| char *pattern_fastmap; |
| char errorbuffer[512]; |
| pattern_fastmap = xcalloc (256, sizeof (char)); |
| if (searchstr == NULL) |
| error("REGEXP string is empty"); |
| |
| if (regcomp(&pattern,searchstr,REG_ICASE) == 0) |
| { |
| pattern.fastmap=pattern_fastmap; |
| re_compile_fastmap(&pattern); |
| apropos_cmd (gdb_stdout,cmdlist,&pattern,""); |
| } |
| else |
| { |
| regerror(regcomp(&pattern,searchstr,REG_ICASE),NULL,errorbuffer,512); |
| error("Error in regular expression:%s",errorbuffer); |
| } |
| xfree (pattern_fastmap); |
| } |
| |
| /* Print a list of files and line numbers which a user may choose from |
| in order to list a function which was specified ambiguously (as with |
| `list classname::overloadedfuncname', for example). The vector in |
| SALS provides the filenames and line numbers. */ |
| |
| static void |
| ambiguous_line_spec (struct symtabs_and_lines *sals) |
| { |
| int i; |
| |
| for (i = 0; i < sals->nelts; ++i) |
| printf_filtered ("file: \"%s\", line number: %d\n", |
| sals->sals[i].symtab->filename, sals->sals[i].line); |
| } |
| |
| static void |
| set_debug (char *arg, int from_tty) |
| { |
| printf_unfiltered ("\"set debug\" must be followed by the name of a print subcommand.\n"); |
| help_list (setdebuglist, "set debug ", -1, gdb_stdout); |
| } |
| |
| static void |
| show_debug (char *args, int from_tty) |
| { |
| cmd_show_list (showdebuglist, from_tty, ""); |
| } |
| |
| void |
| init_cmd_lists (void) |
| { |
| max_user_call_depth = 1024; |
| |
| cmdlist = NULL; |
| infolist = NULL; |
| enablelist = NULL; |
| disablelist = NULL; |
| togglelist = NULL; |
| stoplist = NULL; |
| deletelist = NULL; |
| enablebreaklist = NULL; |
| setlist = NULL; |
| unsetlist = NULL; |
| showlist = NULL; |
| sethistlist = NULL; |
| showhistlist = NULL; |
| unsethistlist = NULL; |
| maintenancelist = NULL; |
| maintenanceinfolist = NULL; |
| maintenanceprintlist = NULL; |
| maintenancelistlist = NULL; |
| setprintlist = NULL; |
| showprintlist = NULL; |
| setchecklist = NULL; |
| showchecklist = NULL; |
| } |
| |
| |
| void |
| init_cli_cmds (void) |
| { |
| struct cmd_list_element *c; |
| |
| /* Define the classes of commands. |
| They will appear in the help list in the reverse of this order. */ |
| |
| add_cmd ("internals", class_maintenance, NULL, |
| "Maintenance commands.\n\ |
| Some gdb commands are provided just for use by gdb maintainers.\n\ |
| These commands are subject to frequent change, and may not be as\n\ |
| well documented as user commands.", |
| &cmdlist); |
| add_cmd ("obscure", class_obscure, NULL, "Obscure features.", &cmdlist); |
| add_cmd ("aliases", class_alias, NULL, "Aliases of other commands.", &cmdlist); |
| add_cmd ("user-defined", class_user, NULL, "User-defined commands.\n\ |
| The commands in this class are those defined by the user.\n\ |
| Use the \"define\" command to define a command.", &cmdlist); |
| add_cmd ("support", class_support, NULL, "Support facilities.", &cmdlist); |
| if (!dbx_commands) |
| add_cmd ("status", class_info, NULL, "Status inquiries.", &cmdlist); |
| add_cmd ("files", class_files, NULL, "Specifying and examining files.", &cmdlist); |
| add_cmd ("breakpoints", class_breakpoint, NULL, "Making program stop at certain points.", &cmdlist); |
| add_cmd ("data", class_vars, NULL, "Examining data.", &cmdlist); |
| add_cmd ("stack", class_stack, NULL, "Examining the stack.\n\ |
| The stack is made up of stack frames. Gdb assigns numbers to stack frames\n\ |
| counting from zero for the innermost (currently executing) frame.\n\n\ |
| At any time gdb identifies one frame as the \"selected\" frame.\n\ |
| Variable lookups are done with respect to the selected frame.\n\ |
| When the program being debugged stops, gdb selects the innermost frame.\n\ |
| The commands below can be used to select other frames by number or address.", |
| &cmdlist); |
| add_cmd ("running", class_run, NULL, "Running the program.", &cmdlist); |
| |
| /* Define general commands. */ |
| |
| add_com ("pwd", class_files, pwd_command, |
| "Print working directory. This is used for your program as well."); |
| c = add_cmd ("cd", class_files, cd_command, |
| "Set working directory to DIR for debugger and program being debugged.\n\ |
| The change does not take effect for the program being debugged\n\ |
| until the next time it is started.", &cmdlist); |
| set_cmd_completer (c, filename_completer); |
| |
| add_com ("echo", class_support, echo_command, |
| "Print a constant string. Give string as argument.\n\ |
| C escape sequences may be used in the argument.\n\ |
| No newline is added at the end of the argument;\n\ |
| use \"\\n\" if you want a newline to be printed.\n\ |
| Since leading and trailing whitespace are ignored in command arguments,\n\ |
| if you want to print some you must use \"\\\" before leading whitespace\n\ |
| to be printed or after trailing whitespace."); |
| add_com ("document", class_support, document_command, |
| "Document a user-defined command.\n\ |
| Give command name as argument. Give documentation on following lines.\n\ |
| End with a line of just \"end\"."); |
| add_com ("define", class_support, define_command, |
| "Define a new command name. Command name is argument.\n\ |
| Definition appears on following lines, one command per line.\n\ |
| End with a line of just \"end\".\n\ |
| Use the \"document\" command to give documentation for the new command.\n\ |
| Commands defined in this way may have up to ten arguments."); |
| |
| c = add_cmd ("source", class_support, source_command, |
| "Read commands from a file named FILE.\n\ |
| Note that the file \"" GDBINIT_FILENAME "\" is read automatically in this way\n\ |
| when gdb is started.", &cmdlist); |
| set_cmd_completer (c, filename_completer); |
| |
| add_com ("quit", class_support, quit_command, "Exit gdb."); |
| c = add_com ("help", class_support, help_command, "Print list of commands."); |
| set_cmd_completer (c, command_completer); |
| add_com_alias ("q", "quit", class_support, 1); |
| add_com_alias ("h", "help", class_support, 1); |
| |
| c = add_set_cmd ("verbose", class_support, var_boolean, (char *) &info_verbose, |
| "Set ", |
| &setlist), |
| add_show_from_set (c, &showlist); |
| set_cmd_sfunc (c, set_verbose); |
| set_verbose (NULL, 0, c); |
| |
| add_prefix_cmd ("history", class_support, set_history, |
| "Generic command for setting command history parameters.", |
| &sethistlist, "set history ", 0, &setlist); |
| add_prefix_cmd ("history", class_support, show_history, |
| "Generic command for showing command history parameters.", |
| &showhistlist, "show history ", 0, &showlist); |
| |
| add_show_from_set |
| (add_set_cmd ("expansion", no_class, var_boolean, (char *) &history_expansion_p, |
| "Set history expansion on command input.\n\ |
| Without an argument, history expansion is enabled.", &sethistlist), |
| &showhistlist); |
| |
| add_prefix_cmd ("info", class_info, info_command, |
| "Generic command for showing things about the program being debugged.", |
| &infolist, "info ", 0, &cmdlist); |
| add_com_alias ("i", "info", class_info, 1); |
| |
| add_com ("complete", class_obscure, complete_command, |
| "List the completions for the rest of the line as a command."); |
| |
| add_prefix_cmd ("show", class_info, show_command, |
| "Generic command for showing things about the debugger.", |
| &showlist, "show ", 0, &cmdlist); |
| /* Another way to get at the same thing. */ |
| add_info ("set", show_command, "Show all GDB settings."); |
| |
| add_cmd ("commands", no_class, show_commands, |
| "Show the history of commands you typed.\n\ |
| You can supply a command number to start with, or a `+' to start after\n\ |
| the previous command number shown.", |
| &showlist); |
| |
| add_cmd ("version", no_class, show_version, |
| "Show what version of GDB this is.", &showlist); |
| |
| add_com ("while", class_support, while_command, |
| "Execute nested commands WHILE the conditional expression is non zero.\n\ |
| The conditional expression must follow the word `while' and must in turn be\n\ |
| followed by a new line. The nested commands must be entered one per line,\n\ |
| and should be terminated by the word `end'."); |
| |
| add_com ("if", class_support, if_command, |
| "Execute nested commands once IF the conditional expression is non zero.\n\ |
| The conditional expression must follow the word `if' and must in turn be\n\ |
| followed by a new line. The nested commands must be entered one per line,\n\ |
| and should be terminated by the word 'else' or `end'. If an else clause\n\ |
| is used, the same rules apply to its nested commands as to the first ones."); |
| |
| /* If target is open when baud changes, it doesn't take effect until the |
| next open (I think, not sure). */ |
| add_show_from_set (add_set_cmd ("remotebaud", no_class, |
| var_zinteger, (char *) &baud_rate, |
| "Set baud rate for remote serial I/O.\n\ |
| This value is used to set the speed of the serial port when debugging\n\ |
| using remote targets.", &setlist), |
| &showlist); |
| |
| c = add_set_cmd ("remotedebug", no_class, var_zinteger, |
| (char *) &remote_debug, |
| "Set debugging of remote protocol.\n\ |
| When enabled, each packet sent or received with the remote target\n\ |
| is displayed.", &setlist); |
| deprecate_cmd (c, "set debug remote"); |
| deprecate_cmd (add_show_from_set (c, &showlist), "show debug remote"); |
| |
| add_show_from_set (add_set_cmd ("remote", no_class, var_zinteger, |
| (char *) &remote_debug, |
| "Set debugging of remote protocol.\n\ |
| When enabled, each packet sent or received with the remote target\n\ |
| is displayed.", &setdebuglist), |
| &showdebuglist); |
| |
| add_show_from_set ( |
| add_set_cmd ("remotetimeout", no_class, var_integer, (char *) &remote_timeout, |
| "Set timeout limit to wait for target to respond.\n\ |
| This value is used to set the time limit for gdb to wait for a response\n\ |
| from the target.", &setlist), |
| &showlist); |
| |
| add_prefix_cmd ("debug", no_class, set_debug, |
| "Generic command for setting gdb debugging flags", |
| &setdebuglist, "set debug ", 0, &setlist); |
| |
| add_prefix_cmd ("debug", no_class, show_debug, |
| "Generic command for showing gdb debugging flags", |
| &showdebuglist, "show debug ", 0, &showlist); |
| |
| c = add_com ("shell", class_support, shell_escape, |
| "Execute the rest of the line as a shell command.\n\ |
| With no arguments, run an inferior shell."); |
| set_cmd_completer (c, filename_completer); |
| |
| c = add_com ("edit", class_files, edit_command, |
| concat ("Edit specified file or function.\n\ |
| With no argument, edits file containing most recent line listed.\n\ |
| ", "\ |
| Editing targets can be specified in these ways:\n\ |
| FILE:LINENUM, to edit at that line in that file,\n\ |
| FUNCTION, to edit at the beginning of that function,\n\ |
| FILE:FUNCTION, to distinguish among like-named static functions.\n\ |
| *ADDRESS, to edit at the line containing that address.\n\ |
| Uses EDITOR environment variable contents as editor (or ex as default).",NULL)); |
| |
| c->completer = location_completer; |
| |
| add_com ("list", class_files, list_command, |
| concat ("List specified function or line.\n\ |
| With no argument, lists ten more lines after or around previous listing.\n\ |
| \"list -\" lists the ten lines before a previous ten-line listing.\n\ |
| One argument specifies a line, and ten lines are listed around that line.\n\ |
| Two arguments with comma between specify starting and ending lines to list.\n\ |
| ", "\ |
| Lines can be specified in these ways:\n\ |
| LINENUM, to list around that line in current file,\n\ |
| FILE:LINENUM, to list around that line in that file,\n\ |
| FUNCTION, to list around beginning of that function,\n\ |
| FILE:FUNCTION, to distinguish among like-named static functions.\n\ |
| *ADDRESS, to list around the line containing that address.\n\ |
| With two args if one is empty it stands for ten lines away from the other arg.", NULL)); |
| |
| if (!xdb_commands) |
| add_com_alias ("l", "list", class_files, 1); |
| else |
| add_com_alias ("v", "list", class_files, 1); |
| |
| if (dbx_commands) |
| add_com_alias ("file", "list", class_files, 1); |
| |
| c = add_com ("disassemble", class_vars, disassemble_command, |
| "Disassemble a specified section of memory.\n\ |
| Default is the function surrounding the pc of the selected frame.\n\ |
| With a single argument, the function surrounding that address is dumped.\n\ |
| Two arguments are taken as a range of memory to dump."); |
| set_cmd_completer (c, location_completer); |
| if (xdb_commands) |
| add_com_alias ("va", "disassemble", class_xdb, 0); |
| |
| /* NOTE: cagney/2000-03-20: Being able to enter ``(gdb) !ls'' would |
| be a really useful feature. Unfortunately, the below wont do |
| this. Instead it adds support for the form ``(gdb) ! ls'' |
| (i.e. the space is required). If the ``!'' command below is |
| added the complains about no ``!'' command would be replaced by |
| complains about how the ``!'' command is broken :-) */ |
| if (xdb_commands) |
| add_com_alias ("!", "shell", class_support, 0); |
| |
| c = add_com ("make", class_support, make_command, |
| "Run the ``make'' program using the rest of the line as arguments."); |
| set_cmd_completer (c, filename_completer); |
| add_cmd ("user", no_class, show_user, |
| "Show definitions of user defined commands.\n\ |
| Argument is the name of the user defined command.\n\ |
| With no argument, show definitions of all user defined commands.", &showlist); |
| add_com ("apropos", class_support, apropos_command, "Search for commands matching a REGEXP"); |
| |
| add_show_from_set ( |
| add_set_cmd ("max-user-call-depth", no_class, var_integer, |
| (char *) &max_user_call_depth, |
| "Set the max call depth for user-defined commands.\n", |
| &setlist), |
| &showlist); |
| } |